Socket wrench



Jan. 13, 1925- 1,523,022

G. R. LARSON SOCKET WRENCH Filed Dec. 10, 1925 Patented Jan. 13, 1925.

PATENT OFFICE.

GUSTAV R. LARSON, OF GLARKFIELD, MINNESOTA.

SOCKET WRENCH.

Application filed December 10, 1923, Serial No. 679,838.

To all whom it may concern:

Be it known that I, GUSTAV R. LARSON, a citizen of the United States, residing at Clarkfield, in the county of Yellow Medicine and State of Minnesota, have invented certain new and useful Improvements in Socket Wrenches, of which thefollowing is a specification. c v

This invention relates to an improvement in socket wrenches and has more particular reference to an article of this character wherein the same embodies a stem or shank that is adapted to have detachably positioned upon one end thereof, socket elements of different shapes and sizes and that is adapted for detachable engagement at its opposite end with a desirable form of bit brace whereby nuts of varying sizes and shapes may be readily worked upon.

The primary objectof the present invention is to substantially improve and simplify over articles of this general nature;

With the above and other objects in" view as the nature of the invention is better understood, the same comprises the novel form,

combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing wherein like reference 3 characters indicate corresponding parts throughout the several views,

Figure 1 is an elevational view of the stem or shank element of thesocket wrench constructed in accordance with the present invention,

Figure 2 is a similar view artlyin cross section, one of the socket e ements being shown as positioned upon the lower end of said stem or shank, and r 40 Figure 3 is an enlarged perspective of the lower end of said stem or shank for more clearly disclosing a spring element that is carried thereby for maintaining the different socket elements upon the lower end of the stem or shank until the same are forcibly removed therefrom.

Now having particular reference to the drawing, my novel socket wrench embodies a stem or shank 5 that is formed upon one 5 end with an angular tapering head 6 for the reception of the usual socket of a bit brace whereby said stem or shank may be effectively rotated.

The lower end of said stem or shank 5 is reduced andsquared as at 7 for the detachable reception of various sizes and shapes of socket elements designated by the reference character 8 in Figure 2.

Riveted or otherwise suitably secured to the stem or shank 5 at a point directly above the reduced and squared end 7 is a leaf spring 9 that extends downwardly alongside of the stem or shank and that is bent or curved slightly inwardly as at 10 which curved portion engages within a vertical slot or guideway 11 in said reduced and squared portion 7. This leaf spring is then again bent outwardly for providing a socket engaging hub 12 after which the same is again bent inwardly into the slot 11 as at 13, said inwardly curved portion 10 and inwardly bent portion 13 maintaining a spring tension upon said hub,12 for consequently firmly retaining the socket element upon the reduced and squared end 7 of the stem or shank until the same is forcibly removed therefrom.

It will thus be seen that I have provided a highly novel and efiicient form of socket wrench and one that will meet with all of so the requirements for a successful commercial use.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is A wrench comprising a shankhaving a cylindrical intermediate portion and a transversely squared end portion, the shank being provided at its side with a longitudinally disposed recess leading in from the squared end thereof and extending into the cylindrical portion the inner wall of the recess having ashoulder at the inner end of the keeper portion thereof, the end portion of the recess which traverses the length of the squared portion being deeper than that portion of the recess which is located in the cylindrical portion, a flat spring secured at one end in that portion of the recess which is located in the cylindrical portion of the shank whereby the outer surface of the said spring is flush with the exterior surface of the cylindrical portion of the shank, the spring being provided at its free end portion with a hump which is disposed op osite the deeper portlon of the recess whic is provided in the squared portion of the shank, the hump being normally disposed beyond the side of the squared portion of the shank and the end of the spring being received within the deeper portion of the recess and the hump adapted to swing transversely across the shoulder.

In testimony whereof I afiix my signature.

GUSTAV R. LARSON. 

